Boost Basic Linear Algebra - Release Notes

Release 1.43.0

bug fixes

[3539]
changed computation of norm_inf for complex types to match
mathematical definition. Note: This might cause a performance drop
because now std::abs(z) is called for each vector element.
The old implementation used std::max(std::abs(real(z)),std::abs(imag(z)).
Further norm_inf and norm_1 will now return
the same values for complex vector.